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Finding the Fourth Proportional to 105,988,978.80, 158,983,468.20 and 98,336,228.40

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Solution

The fourth proportional to 105,988,978.80, 158,983,468.20 and 98,336,228.40 is: 147,504,342.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,988,978.80 : 158,983,468.20 = 98,336,228.40 : x
  2. Step 2: Convert to fraction form
    105,988,978.80/158,983,468.20 = 98,336,228.40/x
  3. Step 3: Cross multiply
    105,988,978.80x = 158,983,468.20 × 98,336,228.40
  4. Step 4: Simplify right side
    105,988,978.80x = 15,633,834,640,739,336
  5. Step 5: Solve for x
    x = 15,633,834,640,739,336/105,988,978.80
  6. Step 6: Final answer
    x = 147,504,342.60

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Why These Related Problems?

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